Home / 1,103.56-1,643.34-1,091.44

Finding the Fourth Proportional to 1,103.56, 1,643.34 and 1,091.44

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Solution

The fourth proportional to 1,103.56, 1,643.34 and 1,091.44 is: 1,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.56 : 1,643.34 = 1,091.44 : x
  2. Step 2: Convert to fraction form
    1,103.56/1,643.34 = 1,091.44/x
  3. Step 3: Cross multiply
    1,103.56x = 1,643.34 × 1,091.44
  4. Step 4: Simplify right side
    1,103.56x = 1,793,607.01
  5. Step 5: Solve for x
    x = 1,793,607.01/1,103.56
  6. Step 6: Final answer
    x = 1,625.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.